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Hi,
How to execute DOS commands from VB. I used Shell command but it didn't work.Pls help me with an example.
Ram
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VB6 or VB.NET ? What commands are you trying to execute ?
Christian Graus - Microsoft MVP - C++
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Well, if you just want to execute the commands and exit the command line, you can shell cmd with the /c command line switch. For example, if you want to execute the help command,:
Shell("cmd.exe /c help")
That would work in both VB6 and VB 05, though it's not the best practice in VB 05...
Yuvi Panda T
15 Year old Microsoft Student Partner
Blogs at : http://yuvipanda.blogspot.com
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I always use Process, you can actually redirect the input/output...
short example to ping google...
Dim ping As New Process
ping.StartInfo.Arguments = "www.google.com"
ping.StartInfo.CreateNoWindow = True 'this will prevent a window from being created, so the user won't see a flash of a console window opening/closing
ping.StartInfo.FileName = "ping" 'whatever program you want to run
ping.StartInfo.RedirectStandardOutput = True ' must be set to true if you want to get output
ping.StartInfo.UseShellExecute = False ' must be set to false if any of RedirectStandard* members are true
ping.Start() 'starts the application
MsgBox(ping.StandardOutput.ReadToEnd) 'will msgbox the output of ping
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Hi I am working on vb 6.0, I have a textbox on my form and i want to do something when user write something and hit enter key, So please anybody tell me how to track this thing
Thanks
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in keypress event of the textbox ....
' I dont remember in vb6 which parameter come in the procedure. so check the parameter and replace e.keycode with that
if e.keycode=vbenter then
do something here
end if
Rizwan Bashir
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Thanks i got the solution
Actually in vb we do it by onkeypress event in which we can know whether the enter key is pressed or not by the value of enter key ascii value which is 13.
ok
Thanks
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How do I code the listbox select item to not change when the choice is incorrect.
I'm doing a simulation of driving and the listbox has Park, Reverse, Drive and Neutral and you are not allowed to change gears when there is speed my code is allowing the change and I get the message box up twice how do I stop it from changing and only have the message box up once?
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You may disable the listbox:
ListBox1.Enabled=False
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How about?:
If speed > 0 then ListBox1.Enabled = False
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Hey, I've been taking an independant study in Computer Programming, i've been doing VB.Net, and i've had prior experience with VB6/VB5 and C/C++ and a few other non-compiled languages, so i'm not a complete idiot... but i have to come up with some sort of project for my final. which will be due on thursday... anybody have any ideas for something interesting i could do? my friend who is also in the same class is going to do something with TrueVision3D, his will be something like a game where you can construct things...
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Due on Thursday and you want ideas at this point ? That would limit your choices, I would expect....
I hope you didn't mean to imply that C++ is a non-compiled language ?
I would think that your best bet at this point is to start with something where you get a bit of flash from something that VB gives you for free, such as a DirectX sample. If you start with a DX sample and build something out of it, you might be able to save the day. Otherwise, I get the feeling that you're hosed, with only a few days to go.
Christian Graus - Microsoft MVP - C++
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I thought someone might misinterpret that.... no i meant i compiled languages such as VB5/VB6, C/C++, and in addition some non-compiled (mostly server side scripting languages) such as PHP, ASP, etc.
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Archer282 wrote: which will be due on thursday...
You have left it far far far too late to do anything of any significance.
If you knew, some time ago, you had this "final" to do, why have you given yourself an impossible task so late "in-the-day" ?
At what level is this independant study?
modified 1-Aug-19 21:02pm.
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Well actually i didn't know until Thursday, the teacher never said anything...
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Archer282 wrote: Well actually i didn't know until Thursday, the teacher never said anything...
In which case you had better start "banging tables" to show your disgust and contempt of a system that clearly is handicapping you rather than helping you.
Assuming you have a copy of Microsoft Project software, navigate to where the MS samples are stored and load the sample project entitled "Software Development". Open it and see the data that is presented to you. Then look at the timescales required to effect some software project from inception to end, and what they show there is not representative of real-life project development time.
Say to your teacher if MS Project sample cannot do a software project IN ONE WEEK what chance have you.
modified 1-Aug-19 21:02pm.
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How do you completely RELEASE a bitmap file if you load it as an image?
The following code chokes:
Picturebox1.Image = Image.FromFile("C:\test.bmp") 'load the file
....
....
....
....
Picturebox1.Image = Nothing
Picturebox1.Dispose
Try deleting file here and you get “cannot delete…in use by another user…” error.
???
Thanks.
Carp
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Hello
I Think you have to release the image.
So try this:
PictureBox1.Image.dispose
PictureBox1.Image=Nothing
Hope it helps
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Thanks that did the trick!
Carp
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when running this command:
RS("Field").Value = Stream.Read
I am getting this error:
"Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done."
Field in MySQL is defined as a LongBlob
Any help would be appreciated.
For every action there is an equal and opposite malfunction
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dear sir
how to store actual image in database(ms sql server) using vb.net
thanka
prabhakar dwivedi
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Sub AddImage(rs As ADODB.Recordset, ByVal FileName As String)
Dim stm As ADODB.Stream
Set stm = New ADODB.Stream
With stm
.Type = adTypeBinary
.Open
.LoadFromFile FileName
'Insert the binary object into the table.
rs.AddNew
rs.Fields("DocumentColumnNameGoesHere").Value = .Read
rs.Update
.Close
End With
Set stm = Nothing
End Sub
For every action there is an equal and opposite malfunction
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Hi
I have a small problem...I have some game located in say D:\MyApps\mygame.exe
I need to launch mygame.exe using my vb.net application...
I used Process.start("D:\MyApps\mygame.exe") ...but it is not working .
If I place my application in D:\MyApps\ and use Process.start("mygame.exe")..it is working fine
Can somebody pls help...tnx in anticipation
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This MUST work in VB.NET fine (since I have used it a lot!). In C# you should only change \ to \\ to work...
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